Abstract
Adsorption of Methyl Green dye using Fava Bean Peel Waste was investigated in detail by conducting batch kinetic, thermodynamic and desorption experiments. Experimental data found appear that adsorption method was highly dependent on equilibrium time, adsorbent amount, and initial concentration of dye and pH solution. The sorption equilibrium for Methyl Green dye via Fava Bean Peel Waste was reached within 30 minutes and removal percentage of up to 82%. The result appear isotherm Freundlich gave the better fit comparative with Langmuir isotherm., Thermodynamic quantities including Gibbs free energy, enthalpy, entropy was evaluated, the negative values for each (ΔG° and ΔH°) obtained indicated the spontaneous and exothermic process and negative value of ΔS° is indicate decreased randomness during the process of adsorption.
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